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Saint-Cast-le-Guildo
Water Temperature in the Celtic Sea in Saint-Cast-le-Guildo, France: Current and Forecast
On this page, you will find comprehensive information about the sea temperature in Saint-Cast-le-Guildo in France, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Saint-Cast-le-Guildo
53°F
TODAY
55°F
YESTERDAY
54°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Celtic Sea in Saint-Cast-le-Guildo is 12.5°F. The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Celtic Sea in Saint-Cast-le-Guildo Over the Last 30 Days
The water temperature in Saint-Cast-le-Guildo today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Saint-Cast-le-Guildo will remain nearly unchanged in the coming days, its value will be 54°F.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across France to enhance accuracy.
Water temperature data for Saint-Cast-le-Guildo and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| May 6 | 54°F | 53°F | |
| May 7 | 56°F | 55°F | |
| May 8 | 56°F | 54°F | |
| May 9 | 54°F | 55°F | |
| May 10 | 55°F | 54°F | |
| May 11 | 54°F | 54°F | |
| May 12 | 55°F | 54°F | |
| May 13 | 54°F | 55°F | |
| May 14 | 54°F | 53°F | |
| May 15 | 54°F | 53°F | |
| May 16 | 54°F | 53°F | |
| May 17 | 54°F | 53°F | |
| May 18 | 54°F | 53°F | |
| May 19 | 55°F | 54°F | |
| May 20 | 55°F | 54°F | |
| May 21 | 55°F | 54°F |
Sea Temperature in Saint-Cast-le-Guildo Throughout the Year
Throughout the year, the sea temperature in Saint-Cast-le-Guildo exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 0 days, and exceeds 64°F (18°C) for 28 days.
Below is the annual chart of sea temperature changes in the Celtic Sea in Saint-Cast-le-Guildo.
January
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 48°F | 54°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 49°F | 52°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 45°F | 48°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 52°F | 55°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 59°F | 64°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 62°F | 66°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 65°F | 70°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 65°F | 70°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 59°F | 63°F | 66°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 58°F | 63°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 53°F | 57°F |
Monthly Water Temperature Histogram for Celtic Sea in Saint-Cast-le-Guildo
You can explore detailed data on how the water temperature in Saint-Cast-le-Guildo varies each month:
What Beaches Are There In and Around Saint-Cast-le-Guildo?
Grande Plage
Grande Plage is a 5-stars sandy beach, is located directly in Saint-Cast-le-Guildo. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Grande Plage is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Plage De La Fosse
Plage De La Fosse is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Saint-Cast-le-Guildo. There is parking. There are cafés. Plage De La Fosse is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Plage De Chateau Serein
Plage De Chateau Serein is a 3-stars sandy beach, located in a 4 km (2 miles) radius of Saint-Cast-le-Guildo. There is parking. There are cafés. Plage De Chateau Serein is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Archipel Des Ebihens
Archipel Des Ebihens is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Saint-Cast-le-Guildo. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Anse Du Croc A Frehel
Anse Du Croc A Frehel is a 5-stars sandy beach, located in a 8 km (5 miles) radius of Saint-Cast-le-Guildo. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Criques Chateau Renard
Criques Chateau Renard is a 2-stars sandy beach, located in a 8 km (5 miles) radius of Saint-Cast-le-Guildo. There are cafés. Criques Chateau Renard is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Plage Des Briantais
Plage Des Briantais is a 3-stars sandy beach, located in a 8 km (5 miles) radius of Saint-Cast-le-Guildo. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Greve Des Fosses A Frehel
Greve Des Fosses A Frehel is a 3-stars sandy beach, located in a 9 km (6 miles) radius of Saint-Cast-le-Guildo. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Saint-Cast-le-Guildo Weather
MAY 14
50°F / 61°F
few clouds: 11-25%humidity: 76% | wind: 3 mph
MAY 15
48°F / 61°F
overcast clouds: 85-100%humidity: 78% | wind: 2 mph
MAY 16
48°F / 61°F
clear skyhumidity: 76% | wind: 2 mph
MAY 17
48°F / 54°F
clear skyhumidity: 89% | wind: 2 mph
Sea Temperature in the Celtic Sea in Saint-Cast-le-Guildo: General Trends and Swimming Opportunities
Brittany, France has a temperate maritime climate characterized by mild summers and cool winters. The coastal region often experiences abundant rainfall throughout the year, coupled with ample sunshine, and is frequently subjected to the cooling sea breezes.
Saint-Cast-le-Guildo is located in Europe in the Northern Hemisphere at a latitude of 49 degrees, along the shores of the Celtic Sea. Saint-Cast-le-Guildo lies within the Brittany in France.
The average annual daytime air temperature in Saint-Cast-le-Guildo is 16°C (61°F), with the average nighttime temperature being 9°C (48°F). The highest average daily temperature occurs in August, reaching 22°C (72°F), while the lowest is in January at 10°C (49°F). As for nighttime temperatures, the minimum average temperature of 4°C (39°F) is recorded in February, and the maximum is in July, reaching 15°C (58°F).
According to historical data, Saint-Cast-le-Guildo experiences 136 rainy days per year, which accounts for 37 percent of all days in the year. On average, there are 11 rainy days each month. The wettest month is November, with 15 rainy days and 88 mm (3.5 inches) of precipitation, while the driest month is July, which typically has 8 rainy days and only 45 mm (1.8 inches) of precipitation.
The average annual water temperature in Celtic Sea in Saint-Cast-le-Guildo is 14°C (57°F). In January, the water reaches its lowest point of the year at 6°C (43°F), while in August, it peaks at 21°C (70°F). In Saint-Cast-le-Guildo, the water temperature in the Celtic Sea never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Saint-Cast-le-Guildo
Nearby Cities
Frequently Asked Questions About Saint-Cast-le-Guildo and its Water Temperatures
What is the current sea temperature in Saint-Cast-le-Guildo?
The water temperature today in the Celtic Sea in Saint-Cast-le-Guildo is 53°F (11.6°C).
In which months is the water temperature in Saint-Cast-le-Guildo comfortable for swimming?
It cannot be guaranteed that the water temperature in Saint-Cast-le-Guildo will be comfortable for swimming in any month of the year.
What is the water temperature in Saint-Cast-le-Guildo during the winter?
The water temperature in the Celtic Sea in Saint-Cast-le-Guildo during the winter ranges from 6°C to 14°C (43°F to 57°F).
What is the water temperature in Saint-Cast-le-Guildo during the spring?
The water temperature in the Celtic Sea in Saint-Cast-le-Guildo during the spring ranges from 7°C to 15°C (45°F to 59°F).
What is the water temperature in Saint-Cast-le-Guildo during the summer?
The water temperature in the Celtic Sea in Saint-Cast-le-Guildo during the summer ranges from 12°C to 21°C (54°F to 70°F).
What is the water temperature in Saint-Cast-le-Guildo during the fall?
The water temperature in the Celtic Sea in Saint-Cast-le-Guildo during the fall ranges from 12°C to 21°C (54°F to 70°F).
Is it possible to swim in the sea in Saint-Cast-le-Guildo at any time of the year?
The Celtic Sea in Saint-Cast-le-Guildo is quite cool, and swimming is only possible in August, and September when the water temperature reaches 21°C (70°F).
Is Saint-Cast-le-Guildo a popular tourist destination for beach vacations?
Saint-Cast-le-Guildo has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.
What sea temperatures can I expect in Saint-Cast-le-Guildo in the next month?
In June, the water temperature in the Celtic Sea in Saint-Cast-le-Guildo will range between 54°F (12°C) and 64°F (18°C)